Vitamin C (Ascorbic Acid), Plasma
Order Name
VITAMIN C
Test Number: 3603700
Revision Date 12/12/2022
Test Number: 3603700
Revision Date 12/12/2022
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Vitamin C (Ascorbic Acid), Plasma
|
Liquid Chromatography/Tandem Mass Spectrometry | 1903-4 |
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 1 mL (0.5) | Plasma | Lithium Heparin PST (Green/Gray Top) | Frozen (Light Protect) |
| Alternate 1 | 1 mL (0.5) | Plasma | Sodium Heparin (Green Top / No-Gel) | Frozen (Light Protect) |
| Instructions | Overnight fasting is preferred. Patient should refrain from taking vitamin supplements 24 hours prior to collection. Notes: 0.5 mL (Note: This volume Does NOT allow for repeat testing.) Specimen Type: Green-top (Lithium Heparin)tube; amber plastic transport tube with amber-top. (If amber tubes are unavailable, cover standard transport tube completely, top and bottom, with aluminum foil. Identify specimen with patient name directly on the container and on the outside of the aluminum foil. Secure with tape.) For amber plastic transport tube and amber-top, order LabCorp No. 23594. Specimen Storage: FREEZE IMMEDIATELY and Protect From Light. Specimen Collection: Collect blood by venipuncture into a green-top containing lithium heparin and mix immediately by gentle inversion at least six times to ensure adequate mixing. Plasma must be separated from cells immediately after venipuncture and transferred to light-protected amber plastic tube. Separated plasma must be placed on dry ice for shipment within 4 hours of separation. To avoid delays in turnaround time when requesting multiple tests on frozen samples, PLEASE SUBMIT SEPARATE FROZEN SPECIMENS FOR EACH TEST REQUESTED. Specimen Stability: Ambient: Unstable, Refrigerated : Unstable, Frozen: 14 days |
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| GENERAL INFORMATION | |
|---|---|
| Expected TAT | 3-5 days |
| Performing Labcorp Test Code | 001805 |
| Notes | Labcorp Test Code: 001805 |
| CPT Code(s) | 82180 |
| Lab Section | Reference Lab |